Bulb holder



Nov. 13, 1923. 1,474,221

G. C. ALLEN BULB HOLDER Filed April 18. 1922 2 Sheets-sheet 1 I v 7:5

INVENTOR ATTO RN EY Patented Nov. 13, 1923.

.UNITED STATES rarest enovnn o. ALLEN, or nnrnorr, MICHIGAN.

BULB HOLDER.

Application filed Apri118, 1922. Serial No. 555,531

of reach of the average person, and an object of the invention is to provide a bulb holder which, embodies a novel form of mechanism for rotating an electric light bulb either screw it into or unscrewit from its socket More particularly, the present invention embodies an improvement over my bulb holder as disclosed in the application filed March 18, 1921, Serial No. 453,222, the present invention'embodying means for rotating the feed screw which controls operation of the gripping fingers embodied in the bulb holder of the above mentioned application.

A further object of the invention is to provide means whereby the bulb holder may be rotated in either direction by operation of a lever, and it further. embodies suitable means for controlling the direction of rotation of the bulb holder for either screwing a bulb into or unscrewing it from its socket.

Other objects of the invention will appear in the following detailed description taken in. connection with the accompanying drawings wherein:

Fig. 1 is an edge elevation of the improved bulb holder.

Fig. 2 is a side elevation of the bulb holder.

Fig. 3 is a longitudinal section on the line 3-3 of Fig. 1.

Fig. 4 is a vertical section taken on the line 4. 4: of Fig. 3.

Fig. 5 is a horizontal section taken on the line 5-5 of Fig. 3.

Fig. 6 is a fragmentary horizontal section v through the bulb holder.

Referring more particularly to the draw ings, the improved mechanism disclosed in the present application is designed to be associated with the bulb'holder structure disclosed in my application filed March 18, 1921, Serial No. 453,222, which application discloses a bulb holder embodying a body 1 which carries a feed screw 2 rotatable by the tabs I of knurlednut 3 for operating suitabl-e bulb gripping fingers, not shown in-the present application. In the above mentioned application, the feed screw is rotatable manually and owing to its close proximity to the bulb gripping fingers, it is difficult to use the device in connection with bulbs which are sitioned at a relatively great height and with the presentmechanism, means is provided for rotating the feed screw from a point remote from the knurled nut 3 so as to mit the removal or replacing of electric light bulbs, from. a relatively high place, without theuseof a stepladder or oth r support.

The improved features of the bulb holder,

comprises a casing 10 which is cylindrical in shape and is attached to a suitable supporting handle 11 by a forked support 12, the said fork bein pivotally connected to the casing 10 by bolts 14 and'15 respectively. A

collar or sleeve 16. is mounted'about the bolt i 15 and a similar bolt or set screw 1'? is threaded therein from the opposite end of the sleeve, as clearly shown'in Fig. 3 of the drawings The sleeve 16 provides a bearing forthe bevel gear 18, which has a relatively largehub 19 upon which al'ratchet 20 is mounted. A lever 21 is provided, which lever' projects through a slot 22 in the casing 10 and has a cord, rod or analogous struc ture 23 connected thereto and extending in close proximity to the hand grip end of the handle 11 to permit free rocking ofthe lever 21 from the end of the handle 11 remote from the casing 10. The lever 21 extends about the ratchet 20 and has a pawl 24 piv otally carried thereby asshown at25 which pawl is adapted for cooperation with the peripheral'teeth of the ratchet 20, for rotating'the bevelgear 18. v A. flat spring 26 is carried by the arcuate end 27 of the lever 21 and engages the pawl for urging it into engagement 'with the perimeter of the ratchet 20, and a spring 28 is'connected to the casing 10 and to the lever '21 for re turning the lever to its upper position after which receives the feed screw 2 so that rotation of the shaft 34 will move the feed screw 2 longitudinally for operating the bulb gripping arms as disclosed in my com- I g v V tion with a feed screw, of shaft connected panion application previously referred to.

A sleeve 36 is slidably mounted upon the M axial shaft 34 and has a collar 37 formed thereon intermediate its ends, which collar engages in the forked end 38. of the lever 39. The lever 39 is pivotally mounted intermediate its ends and projects through slot 40 in the casinglO. The ratchets 32"and 33 each have cams 4:2 thereon which are adapted to be engaged by the rounded 'heads4t3 on the sleeve 36 for moving the pawls 32 upon their pivots to move them out of engagement withtheir respective ratchets 32 and r 33, so as tocont-rol the directionof rota- 7 tion of the shaft 34.

For example when the sleeve 36 is positioned as shown in Fig. 3 of thedrawings, the pawl 32 is held out of engagement with the ratchet 33 which will permit the bevel gear to rotate when rotating the ratchet, whereas the pawl 31 is in engagement with theratchet 32 so that rotation of the bevel gear 29 will rotate the shaft34. When the V sleeve 36 is shifted to force the pawl 31 out It will be apparent, from the foregoing description, that the body 1 may be posi tioned to extend longitudinally with the handle 11 or transversely thereto, as shown in dotted lines in Fig. 2 of the drawings, depending upon the location or position of the electric light bulb to be replaced.

It is, ofcourse, to be understood thatthe invention may be constructed in other man ners and the. parts associated in different relations and, therefore, I do not desire to be limited in any manner except asset forth in the claims hereunto appended.

I claim is:

1. In alamp bulb holder, the combination with a feedscrew, of means for operating said feed screw, and releasable means for controlling the direction of movement of I Having thus described my invention what- I said feed screw.

2. In a lamp bulb holder, the combina.- tion, with a feed screw, ofa lever, means operated by said lever for rotating said feed screw and moving it longitudinally, and means controlling the operation of said feed screw by said lever for regulating the direction in which the feed screw is moved by operation of the lever;

3. In a deviceas set forth, the combinathereto for operating the feedscrew, ratchets carried'by the shaft, means cooperating with said ratchets for rotating the shaft, 1

and shift-table means for controlling opera tion of said ratchetsfor regulating the direction of rotation of thefshaft;

4.111 a device as set forth, the combination with a. feed screw, of an operating shaft therefor, ratchets carriedfby said shaft, bevel gears rotatable'in opposite directions, pawis carried bysaid bevel gears for cooperation withsaid ratchets to rotate said.

shaft by rotation of the bevel gears, means i J for forcin said 'oawls out of coo aerative C L I engagement with their respective ratchet s, and means for rotating said bevel gears.

5. In a device as set forth, the combina tion with afeed screw, of an operating shaft therefor, ratchets carried by said shaft, bevel gears rotatable in opposite directions, pawls o- 'ried by said bevel gears for cooperation with said ratchets to rotat'e'said shaft by rotation of the bevel gears, means; for forcing said pawls out of cooperative engagement with their respective'r'atchets, a bevel gear meshing with said first named bevel gears, a ratchet carried thereby, and a lever having pawl connection with said ratchet for,

rotating said last named bevel gear. 7 6; In a device as set forth, the combination with a feed scr ew,of an operating shaft therefor, ratchets'carried by said shaft, bevel gears rotatablein opposite directions, pawls carried by said'bevel gears for cooperationwith saidratchet's torotate said shaft by rotation of the bevel gears, a sleeve slidable upon said shaft, a pivotal lever for sliding saidsleeve-for forcing said 'pawlsfout of cooperative engagement with their respective ratchets, and means for rotatingsaid bevel gears. 1 i i I 7 A lamp bulb holder comprising a feed screw, means for rotating said feed screw and moving it longitudinally, and releasable means for controlling the direction ofmovement of the feed screw. 8. A lainp bulb holder comprising, a 'rotatable housing, a feed screw carried by the housing, means for rotating said feed screw about an axis transversely of the axis of the housing, and means controlling'the operation of the feed screw by said last named means for regulating the direction in which, the feed screw is moved by operation of the lever.

In testimony whereofvl afiix my signature. r

" l snovpn o. res 

